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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.implementation.java.introspect.impl;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.logging.Logger;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Service;
import org.apache.tuscany.sca.implementation.java.IntrospectionException;
import org.apache.tuscany.sca.implementation.java.JavaImplementation;
import org.apache.tuscany.sca.implementation.java.impl.JavaElementImpl;
import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
/**
* Processes an {@link org.osoa.sca.annotations.Service} annotation and updates
* the component type with corresponding {@link Service}s. Also processes
* related {@link org.osoa.sca.annotations.Callback} annotations.
*
* @version $$
*/
public class ConsumerProcessor extends BaseJavaClassVisitor {
@SuppressWarnings("unused")
private static final Logger logger = Logger.getLogger(ConsumerProcessor.class.getName());
private JavaInterfaceFactory javaFactory;
public ConsumerProcessor(AssemblyFactory assemblyFactory, JavaInterfaceFactory javaFactory) {
super(assemblyFactory);
this.javaFactory = javaFactory;
}
@Override
public void visitMethod(Method method, JavaImplementation type) throws IntrospectionException {
org.osoa.sca.annotations.Consumer annotation = method.getAnnotation(org.osoa.sca.annotations.Consumer.class);
if (annotation == null) {
return;
}
if(Modifier.isPrivate(method.getModifiers())) {
throw new IllegalConsumerException("Illegal annotation @Consumer found on "+method, method);
}
if (method.getParameterTypes().length != 1) {
throw new IllegalConsumerException("Consumer must have one parameter", method);
}
JavaElementImpl element = new JavaElementImpl(method.getDeclaringClass());
try {
createConsumer(type, element, annotation.name(), method.getName());
} catch (InvalidInterfaceException e) {
throw new IntrospectionException(e);
}
}
/**
* @param type
* @param element
* @throws IllegalConsumerException
*/
private void createConsumer(JavaImplementation type, JavaElementImpl element, String consumerName, String operationName)
throws IllegalConsumerException, InvalidInterfaceException {
Class<?> consumerClass = element.getType();
org.apache.tuscany.sca.assembly.Consumer consumer = assemblyFactory.createConsumer();
JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
consumer.setInterfaceContract(interfaceContract);
consumer.setName(consumerName);
JavaInterface consumerInterface = javaFactory.createJavaInterface();
consumerInterface.setRemotable(true);
javaFactory.createJavaInterface(consumerInterface, consumerClass);
consumer.getInterfaceContract().setInterface(consumerInterface);
consumer.setOperationName(operationName);
type.getConsumers().add(consumer);
}
}
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